I'm trying to understand how clustering works in CentOS 7. I'm not a cluster expert!!!
What I'm trying to do is to have three clustered services: httpd, mariadb (mysql) and postgresql.
I've managed ...

Is it possible to configure a generic Windows service in a Windows Server Failover Cluster such that the service always runs on the same machine as the Primary Replica (read/write) of an SQL Server ...

Is it possible to prevent pcs/dlm/crm from fencing the node when it fails?
I use cluster only to be able to build GFS2 storage, and there's my own way of avoiding split-brain. So I do not need things ...

I can't seem to find the answers to these questions within the vSphere 5 Documentation center, so please share if you are aware of any aspects of these questions.
What happens to the failed VM that ...

In an HA cluster of 5 hosts (100GB memory) if Admission control is enabled and %age cluster failover option is set at 25 % (lets consider only for memory ie. 125 GB), and if one host fails then the ...

We're operating multiple redundant servers across the world for latency reasons. Currently if one site goes down, our only way to let another site take over that region is through DNS.
We would like ...

I'm looking into purchasing a new storage backend for our VMware vSphere Essentials package. We have 3 ESXi hosts, currently mainly using DAS. The goal is to upgrade to Essentials Plus this year, to ...

I'm doing load balancing with HAProxy and use JBoss EAP as application servers.
The Haproxy server is configured to route incoming requests to the application servers.
How can I integrate Jboss EAP ...

I have a simple file share on Windows 2012 R2 server which I would like to be high available. I created failover cluster, but I'm not able to set up FileServer service as there is no shared storage. ...

I am writing software that allows for the configuration of parameters for authentication with a Primary and Secondary RADIUS server.
Server administrators, in your experience, is it common or not for ...

I have a HA setup, which now the only resource configured is Heartbeat with Active/Passive Configuration. Both running Debian 7, 64-bit in the cloud.
Now i want to trigger an URL with the information ...

I have CentOS 7 on the Oracle VM VirtualBox. I have installed the pacemaker-1.1.10, corosync-2.3.3 and pcs tools. I able to create normalocf::heartbeat:IPaddr2 and ocf::heartbeat:apache etc resources. ...

I'm using S3 to serve static image assets to a website. I'm a developer in Montréal, Quebec. My client's office is in LA. Once every month or three we're seeing S3 completely fail to serve images to ...

i'm trying to build cluster by two vm using virtualbox
i follow this tutorial
http://www.tokiwinter.com/clustering-with-drbd-corosync-and-pacemaker/
and type the command as below
[root@node1 data]# ...

One of the things I hate most about RDBMS is that it can't sit on an ASG like the web servers and bounce it around and scale it up and down like a yoyo. Or can it?
Recently looking at MariaDB galera ...

I have a webservice that have a couple of "machine" clients connected to it that does HTTP post with data once in a while. The nature of the service is that I cant allow the service to loose a single ...

I've build a two node storage setup with OCFS on top of DRBD to provide storage for a couple of ESXi servers. Will it be possible to setup iSCSI targets on both storage nodes and make one of the nodes ...

I'm learning about clustering and high availability techniques, and stumbled upon an article about configuring a network with a pair of servers, using DRBD for replication and heartbeat for monitoring ...

I'd like to setup a two node high availability cluster using corosync/pacemaker/drbd. For that, of course, I need fencing. As far as I understand, all IPMI/iLO/... solutions do the job, but only as ...